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GeoStudio | PLAXIS Wiki Hardening Soil Model
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    Hardening Soil Model

    Application PLAXIS 2D
    PLAXIS 3D
    Version PLAXIS 2D
    PLAXIS 3D
    Date created 02 May 2011
    Date modified 02 May 2011

    The Hardening Soil model is an advanced model for the simulation of soil behaviour. As for the Mohr-Coulomb model, limiting states of stress are described by means of the friction angle phi, the cohesion c and the dilatancy angle psi. However, soil stiffness is described much more accurately by using three different input stiffnesses: the triaxial stiffness E50, the triaxial unloading stiffness Eur and the oedometer loading stiffness Eoed. In contrast to the Mohr-Coulomb model, the Hardening Soil model also accounts for stress-dependency of stiffness moduli. This means that all stiffnesses increase with pressure. Hence, all three input stiffnesses relate to a reference stress, usually taken as 100 kPa (1 Bar).

    Besides the model parameters mentioned above, initial soil conditions, such as preconsolidation, play an essential role in most soil deformation problems. This can be taken into account in the initial stress generation.

     

    See also

    The Hardening Soil model: Formulation and Verification

    [Publications]


    Triaxial test with Hardening Soil model

    [Verifications]


    UDSM - Generalized Hardening Soil Model

    [Models]

    • PLAXIS 3D
    • Hardening Soil
    • PLAXIS
    • PLAXIS 2D
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    • Micha van der Sloot Created by Bentley Colleague Micha van der Sloot
    • When: Wed, Dec 18 2019 9:47 AM
    • Micha van der Sloot Last revision by Bentley Colleague Micha van der Sloot
    • When: Tue, Dec 24 2019 6:13 AM
    • Revisions: 3
    • Comments: 0
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